--- configure.ac 2019-07-13 05:14:04.000000000 +0200 +++ configure.ac 2020-12-31 13:46:52.374560516 +0100 @@ -1116,7 +1116,7 @@ else PHP_INCLUDES="`$PHPCONFIG --includes`" PHP_INSTALL_DIR="`$PHPCONFIG --extension-dir`" PHP_INSTALL_DATADIR="/usr/share/php" - PHP_LIBS="`$PHPCONFIG --ldflags` `$PHPCONFIG --libs`" + PHP_LIBS="`$PHPCONFIG --ldflags`" save_CPPFLAGS=$CPPFLAGS CPPFLAGS="$CPPFLAGS $PHP_INCLUDES" AC_CHECK_HEADER(php.h,,[